Stripper plate is commonly used in plastic mold ejector mechanism, the other is ejector pin. Stripper plate push forward the parts rim when molding, the parts depart from the mold. When should we use stripper plate? It need consider the parts structure and surface quality.
a) If the parts are thin wall product or need deep cavity, there need stripper plate or stripper plate and ejector rob which can stably make parts mold.
b) When it requires no ejector rob traces on plastic parts surface, there need stripper plate. It mainly includes clear parts, or the parts that appear after the molding surface assembly.